Why does the actual Yakuza allow the making of the Yakuza games?

[MontanaHatchet]

Millions of people in Japan know who the Yakuza are, and millions of other people worldwide do as well. They're not a secret organization by any means. Hell, the Italian mafia loved The Godfather, and that truly brought them into the limelight (much more than a niche videogame, anyways).